This professional hair color, formulated without ammonia, offers superior gray coverage and vibrant, long-lasting results. The specific shade 6/17 Blue Ash Dark Blonde is crafted to provide a cool, sophisticated tone while depositing rich color saturation. It is ideal for refreshing existing color or achieving a nuanced shade change without the harshness associated with permanent dyes. Achieve brilliant shine and excellent control over your color application with this versatile product.